EP0234777A2 - Snap lock connector - Google Patents

Snap lock connector Download PDF

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Publication number
EP0234777A2
EP0234777A2 EP87300982A EP87300982A EP0234777A2 EP 0234777 A2 EP0234777 A2 EP 0234777A2 EP 87300982 A EP87300982 A EP 87300982A EP 87300982 A EP87300982 A EP 87300982A EP 0234777 A2 EP0234777 A2 EP 0234777A2
Authority
EP
European Patent Office
Prior art keywords
tube
connector body
latch
depressions
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87300982A
Other languages
German (de)
French (fr)
Other versions
EP0234777B1 (en
EP0234777A3 (en
Inventor
Gene D. Dickinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Werke GmbH, Ford France SA, Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Werke GmbH
Publication of EP0234777A2 publication Critical patent/EP0234777A2/en
Publication of EP0234777A3 publication Critical patent/EP0234777A3/en
Application granted granted Critical
Publication of EP0234777B1 publication Critical patent/EP0234777B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F16L37/0985—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
    • F16L37/0987—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part the flexible hook being progressively compressed by axial tensile loads acting on the coupling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/921—Snap-fit

Definitions

  • This invention relates to couplings for hydraulic fluid lines. More particularly, the invention pertains to quickly detachable fluid couplings.
  • U. S. Patent 4,266,814 describes a fitting for receiving and locking a plastic tube in position. It includes a hollow tubular member having compression barbs and flexible locking barbs for gripping the tube and fixing its position with respect to the adapter.
  • the tube has several locking barbs, which have sharp cornered ends adapted to engage and lock a plastic tube in place.
  • the tube includes a set of compression barbs which engage a beam to clamp the tubing into position.
  • the locking barbs bind the surface of the tubing and prevents disassembly of the adapter.
  • the force required to assemble and disconnect the adapter varies substantially with the temperature of the components and the stiffness of the tubing. This coupling is not suited for use with the large temperature variations of approximately 300 degrees F.
  • the quickly detachable pipe coupling described in U.S. Patent 3,245,703 include male and female members that are locked together by means of resilient latch fingers on the male member. These latching elements are received on an interior annular recess located on the female member.
  • the assembly of the coupling requires the pressing of two fingers concurrently and then inserting one member within the other until they reach a locking position.
  • the displacement of the finger during assembly requires a radial gap along the male member in order to accommodate the displacement.
  • There is no tendency in the process of assembling this coupling for the coupling members to be forced axially away from one another after the end of the finger clears the edge of the female member. In addtion, there is no positive indication of complete engagement because the end of the fingers are not visible once they clear the end face of the female member.
  • a coupling for connecting fluid carrying conduits comprising a connector body (14) adapted for connection to one of the conduits including a latching bar (44) directed transversely to the longitudinal axis of the conduits, a tube (12) adapted for sliding support within the connector body (14), means (16,42) for hydraulically sealing the adjacent surfaces of the connector body and tube, a spring latch (18) fixed to the tube (12) having a radially inclined surface (36) contacted by the latching bar (44) as the tube (12) and connector body (14) move toward a connected position and means (38) for releasably connecting the connector body and the tube and means (24,26,28,30,32,34) for locating the angular and axial position of the spring latch with respect to the tube.
  • the latch is displaced radially inward due to contact of its inclined surface with the latching bar as the tube is moved within the connector body.
  • a recess Located at the upper end of the inclined surface and immediately beyond its apex is a recess sized to receive and to hold within it the latching bar.
  • the resilient inward radial displacement of the latch caused by contact of its inclined surface with the latching bar continuously applies an axially directed force to the connector body tending to force the tube and the connector body apart until the tube has been inserted sufficiently far within the connector body that the latching bar moves past the apex of the inclined surface and becomes seated within the recess on the spring latch.
  • the coupling is disassembled manually by applying a radially inwardly directive force to a tab on the latch. This displaces the latch radially inward and moves the recess out of engagement with the latching bar. After the bar clears the apex of the inclined surface, the coupling is disconnected by moving the connector body axially away from the tube.
  • the snap lock connector of this invention makes a mechanical, fluid-tight connection between a hose 10 and a tube 12, whose axes are colinear at least within the region where the connection is being made.
  • the connector includes a body 14, an O-ring 16 and a spring clip or latch 18.
  • the hose may be of rubber or an elastomeric material that can be deformed readily to conform with the serrations formed on the outer surface of the connector body.
  • the connection made between the hose and body is made by forcing the connector within the hose and then crimping a furrule 20 over the outer surface of the hose to apply an inwardly direct pressure to the connector body from the hose.
  • the spring latch 18 includes three spherical, inwardly directed protrusions 24, 26, 28 formed on its inner surface.
  • the protrusions of the latch are adapted to fit within matching spherical depressions 30, 32, 34 formed on the outer surface of tube 12.
  • the depressions and protrusions are positioned so as to permit assembly of the spring latch in only one position on the tube. This is accomplished by arranging the pattern of depressions and protrusions so that each pair is displaced axially along the latch and tube and radially around the longitudinal axis.
  • the spring latch includes an inclined surface 36, a recess 38, and a tab 40.
  • the connector body includes a recess 42, adapted to receive O-ring 16 therewithin, and a transversely directed bar 44, adapted to fit within recess 38.
  • the tube includes an inclined beveled surface 46 that facilitates insertion of the tube within the connector body and location of the spring latch on the outer surface of the tube.
  • the spring latch is assembled to the tube by applying a force to the latch that will increase its diameter.
  • This force can be applied to the arcuate free ends 50, 52 seen in Figure 4; or the expanding force can be applied to the tabs 54, 56 shown in Figures 5 and 6.
  • the expanding force is applied to increase the size of that portion of the latch that is fitted over the tube, and the force is removed when the spherical protrusions are located within the repetitive depressions.
  • connection between the hose and the tube is made after the connector body is secured to the hose and the O-ring is fitted within recess 42.
  • bar 44 on the connector is forced into contact with the inclined surface 36 on the latch as the tube and body are moved axially together.
  • surface 36 will deflect radially inward due to the force acting on it from the bar.
  • the bar clears the upper end of the inclined surface and becomes seated within the recess 38.
  • the latch then springs radially outward and locks the latching bar within the recess, thereby mechanically connecting and hydraulically sealing the tube and the hose.

Abstract

A coupling for connecting hydraulic conduits includes a tube (12) formed with multiple depressions (30,32,34) that are angularly and axially mutually spaced on the surface of the tube (12), a spring latch (18) having a corresponding pattern of multiple protrusions (24,26,28) adapted to fit within the depression of the tube (12), a connector body (14) permanently mechanically connected to one of the hydraulic conduits defining a recess (42) into which is fitted an O-ring (16), and a bar (44) adapted to be locked on the spring latch (18). The O-ring (16) provides a hydraulic seal between the conduits. The latch (18) includes an inclined surface (36) with which the bar (44) makes contact and by means of which the latch (18) is deflected as the conduits are forced axially together. When the bar (44) clears the apex of the inclined surface (36), it becomes locked within a recess (38) on the upper surface of the latch (18) preventing axial disconnection of the conduits.

Description

  • This invention relates to couplings for hydraulic fluid lines. More particularly, the invention pertains to quickly detachable fluid couplings.
  • U. S. Patent 4,266,814 describes a fitting for receiving and locking a plastic tube in position. It includes a hollow tubular member having compression barbs and flexible locking barbs for gripping the tube and fixing its position with respect to the adapter. The tube has several locking barbs, which have sharp cornered ends adapted to engage and lock a plastic tube in place. The tube includes a set of compression barbs which engage a beam to clamp the tubing into position. The locking barbs bind the surface of the tubing and prevents disassembly of the adapter. The force required to assemble and disconnect the adapter varies substantially with the temperature of the components and the stiffness of the tubing. This coupling is not suited for use with the large temperature variations of approximately 300 degrees F. to which the radiator hose of an internal combustion is subjected. High temperature softens the plastic tube and lowers the coupling strength. Low temperature stiffens and shrinks the tubing and could cause leakage between the tube and components. There is no positive indication of complete engagement, either visual or audible.
  • The quickly detachable pipe coupling described in U.S. Patent 3,245,703 include male and female members that are locked together by means of resilient latch fingers on the male member. These latching elements are received on an interior annular recess located on the female member. The assembly of the coupling requires the pressing of two fingers concurrently and then inserting one member within the other until they reach a locking position. The displacement of the finger during assembly requires a radial gap along the male member in order to accommodate the displacement. There is no tendency in the process of assembling this coupling for the coupling members to be forced axially away from one another after the end of the finger clears the edge of the female member. In addtion, there is no positive indication of complete engagement because the end of the fingers are not visible once they clear the end face of the female member.
  • According to the invention there is provided a coupling for connecting fluid carrying conduits comprising a connector body (14) adapted for connection to one of the conduits including a latching bar (44) directed transversely to the longitudinal axis of the conduits, a tube (12) adapted for sliding support within the connector body (14), means (16,42) for hydraulically sealing the adjacent surfaces of the connector body and tube, a spring latch (18) fixed to the tube (12) having a radially inclined surface (36) contacted by the latching bar (44) as the tube (12) and connector body (14) move toward a connected position and means (38) for releasably connecting the connector body and the tube and means (24,26,28,30,32,34) for locating the angular and axial position of the spring latch with respect to the tube.
  • The latch is displaced radially inward due to contact of its inclined surface with the latching bar as the tube is moved within the connector body. Located at the upper end of the inclined surface and immediately beyond its apex is a recess sized to receive and to hold within it the latching bar. The resilient inward radial displacement of the latch caused by contact of its inclined surface with the latching bar continuously applies an axially directed force to the connector body tending to force the tube and the connector body apart until the tube has been inserted sufficiently far within the connector body that the latching bar moves past the apex of the inclined surface and becomes seated within the recess on the spring latch. When the locking bar clears the apex of the inclined surface, the latch is released from its deflective position and immediately springs radially outward to the bar and the recess.
  • The coupling is disassembled manually by applying a radially inwardly directive force to a tab on the latch. This displaces the latch radially inward and moves the recess out of engagement with the latching bar. After the bar clears the apex of the inclined surface, the coupling is disconnected by moving the connector body axially away from the tube.
  • The invention will now be described further by way of example with reference to the accompanying drawings in which:
    • Figure 1 is a cross section through the longitudinal axis of the connector in the assembled position,
    • Figure 2 is a front view of a spring latch,
    • Figure 3 is a top view of the spring latch of Figure 2 viewed in direction 3,
    • Figure 4 is a side view of the spring latch of Figure 2,
    • Figure 5 is a partial side view of an alternate embodiment of the spring latch,
    • Figure 6 is a partial front view of the alternate embodiment of Figure 5, and
    • Figure 7, 8 and 9 are front, top and end views, respectively, of a tubular member of the hydraulic connector enbodying this invention.
  • The snap lock connector of this invention makes a mechanical, fluid-tight connection between a hose 10 and a tube 12, whose axes are colinear at least within the region where the connection is being made. The connector includes a body 14, an O-ring 16 and a spring clip or latch 18.
  • The hose may be of rubber or an elastomeric material that can be deformed readily to conform with the serrations formed on the outer surface of the connector body. The connection made between the hose and body is made by forcing the connector within the hose and then crimping a furrule 20 over the outer surface of the hose to apply an inwardly direct pressure to the connector body from the hose.
  • The spring latch 18 includes three spherical, inwardly directed protrusions 24, 26, 28 formed on its inner surface. The protrusions of the latch are adapted to fit within matching spherical depressions 30, 32, 34 formed on the outer surface of tube 12. The depressions and protrusions are positioned so as to permit assembly of the spring latch in only one position on the tube. This is accomplished by arranging the pattern of depressions and protrusions so that each pair is displaced axially along the latch and tube and radially around the longitudinal axis. The spring latch includes an inclined surface 36, a recess 38, and a tab 40.
  • The connector body includes a recess 42, adapted to receive O-ring 16 therewithin, and a transversely directed bar 44, adapted to fit within recess 38. The tube includes an inclined beveled surface 46 that facilitates insertion of the tube within the connector body and location of the spring latch on the outer surface of the tube.
  • The spring latch is assembled to the tube by applying a force to the latch that will increase its diameter. This force can be applied to the arcuate free ends 50, 52 seen in Figure 4; or the expanding force can be applied to the tabs 54, 56 shown in Figures 5 and 6. The expanding force is applied to increase the size of that portion of the latch that is fitted over the tube, and the force is removed when the spherical protrusions are located within the repetitive depressions.
  • The connection between the hose and the tube is made after the connector body is secured to the hose and the O-ring is fitted within recess 42. Then bar 44 on the connector is forced into contact with the inclined surface 36 on the latch as the tube and body are moved axially together. As additional force is applied and the inclined surface is aligned angularly with the latching bar, surface 36 will deflect radially inward due to the force acting on it from the bar. Eventually, the bar clears the upper end of the inclined surface and becomes seated within the recess 38. The latch then springs radially outward and locks the latching bar within the recess, thereby mechanically connecting and hydraulically sealing the tube and the hose.
  • To dissemble this connection, a force directed radially and downwardly is applied to tab 40 with sufficient magnitude to deflect the spring latch until the upper end of the inclined surface clears bar 44. Then oppositely directed axial forces applied to the hose and the tube while the latch is in the deflected position permit the connector body to become disconnected from the spring latch.

Claims (4)

1. A coupling for connecting fluid carrying conduits comprising a connector body (14) adapted for connection to one of the conduits including a latching bar (44) directed transversely to the longitudinal axis of the conduits, a tube (12) adapted for sliding support within the connector body (14), means (16,42) for hydraulically sealing the adjacent surfaces of the connector body and tube, a spring latch (18) fixed to the tube (12) having a radially inclined surface (36) contacted by the latching bar (44) as the tube (12) and connector body (14) move toward a connected position and means (38) for releasably connecting the connector body and the tube and means (24,26,28,30,32,34) for locating the angular and axial position of the spring latch with respect to the tube.
2. A coupling as claimed in Claim 1, wherein the sealing means includes an annular recess formed on the inner surface of the connector body adjacent the tube, the recess being defined by an axial surface that faces the spring latch and a radial surface that faces the tube.
3. A coupling as claimed in Claim 1 or 2, wherein the connecting means includes a recess formed on the spring latch, located adjacent the radially upper end of the inclined surface and adapted to receive the latching bar therein.
4. A coupling as claimed in any one of Claims 1 to 3, wherein the locating means includes multiple depressions on the surface of the tube, two of said depressions being located in a common axial plane, one of said depressions being spaced axially from the common axial plane, at least one of said depressions being spaced angularly about the longitudinal axis of the coupling from another of said depressions and multiple protuberances formed on the spring latch located for engagement in the depressions of the tube.
EP87300982A 1986-02-18 1987-02-04 Snap lock connector Expired - Lifetime EP0234777B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US830416 1986-02-18
US06/830,416 US4697832A (en) 1986-02-18 1986-02-18 Snap lock connector

Publications (3)

Publication Number Publication Date
EP0234777A2 true EP0234777A2 (en) 1987-09-02
EP0234777A3 EP0234777A3 (en) 1987-12-09
EP0234777B1 EP0234777B1 (en) 1990-07-18

Family

ID=25256969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87300982A Expired - Lifetime EP0234777B1 (en) 1986-02-18 1987-02-04 Snap lock connector

Country Status (3)

Country Link
US (1) US4697832A (en)
EP (1) EP0234777B1 (en)
DE (1) DE3763690D1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460331B (en) * 1988-02-09 1989-10-02 Electrolux Ab COUPLING
US4943091A (en) * 1988-04-07 1990-07-24 Proprietary Technology, Inc. Quick connector
DE3815171A1 (en) * 1988-05-04 1989-11-09 Rasmussen Gmbh PLUG-IN COUPLING TO CONNECT A HOSE TO A PIPE
US4828297A (en) * 1988-06-27 1989-05-09 General Motors Corporation Fluid coupling
US5112084A (en) * 1989-02-07 1992-05-12 Usui Kokusai Sangyo Kaisha, Ltd. Connector for small-diameter piping
US4986765A (en) * 1989-02-21 1991-01-22 Amp Incorporated Insertable latch means for use in an electrical connector
FR2646697B1 (en) * 1989-05-05 1991-10-31 Hutchinson Sa SNAP-ON ASSEMBLY DEVICE FOR HEAT EXCHANGERS OF MOTOR VEHICLES
JP2704553B2 (en) * 1989-09-22 1998-01-26 日本エー・エム・ピー株式会社 Edge connector and board locking device for connector
US5152555A (en) * 1991-03-26 1992-10-06 Itt Corporation Quick connect insertion indicator clip
US5187851A (en) * 1991-12-13 1993-02-23 Itt Corporation O.D. - I.D. combination release tool
US5226230A (en) * 1991-12-13 1993-07-13 Itt Corporation Universal o.d. release tool
BR9404858A (en) * 1993-12-07 1995-08-08 Whitaker Corp Electrical Connector
US5527299A (en) * 1994-05-13 1996-06-18 Critical Disposables, Inc. One-piece rotator and manifold system
US6234544B1 (en) * 1995-09-26 2001-05-22 Proprietary Technology, Inc. Quick connector with confirmation feature
US5806898A (en) * 1996-11-21 1998-09-15 Hollnagle; Harold E. Tube quick connect coupling
US6006434A (en) * 1997-09-30 1999-12-28 Hoffco, Inc. Quick-release component connector for lawn tool
FR2778964B3 (en) * 1998-05-20 2001-01-19 Qualetude Sa DEVICE FOR CONNECTING TWO TUBULAR ELEMENTS, CONNECTABLE TUBULAR ELEMENT AND MANUFACTURING METHOD
US6340180B1 (en) 1999-01-19 2002-01-22 David M. Wisniewski Releasable coupling assembly for securing a vehicle fuel line
US6421913B1 (en) * 2000-01-19 2002-07-23 Delphi Technologies, Inc. Retention feature for assembling a pole pieces into a tube of a fuel injector
US6543814B2 (en) 2000-08-10 2003-04-08 John M. Bartholomew Quick connector
DE10349527B4 (en) * 2003-10-22 2009-04-23 Veritas Ag Hose and clamp fixation for this hose
US20050148230A1 (en) * 2004-01-07 2005-07-07 Flynn James D. Coupling device that includes opposing pawls engagable into opposing pawl catches
US7459617B2 (en) * 2006-01-12 2008-12-02 Gibson Guitar Corp. Locking bridge
EP2425132B1 (en) 2009-04-29 2013-11-20 Vestas Wind Systems A/S A bearing for a wind turbine
US20110207589A1 (en) * 2010-02-24 2011-08-25 Cmd Corporation Pouch Machine With Sealer
DE102022114846A1 (en) * 2022-06-13 2023-12-14 Witzenmann Gmbh Pipe connector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102802A (en) * 1936-01-30 1937-12-21 Electrolux Corp Coupling
US2516907A (en) * 1945-07-09 1950-08-01 H A Douglas Mfg Co Coupling
US2516883A (en) * 1947-09-05 1950-08-01 Douglas Mfg Co Vacuum cleaner coupling
CH403414A (en) * 1962-06-15 1965-11-30 Amf Overseas Corp Pipe coupling
US3245703A (en) * 1963-10-28 1966-04-12 Robert S Manly Quick detachable pipe coupling
DE2132181A1 (en) * 1971-06-29 1973-01-11 Siemens Elektrogeraete Gmbh PIPE CONNECTION, IN PARTICULAR OF VACUUM PIPES
US4266814A (en) * 1979-03-23 1981-05-12 Vfp Corporation Plastic tube adapter

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021241A (en) * 1934-12-24 1935-11-19 Mall Arthur William Quick detachable coupling
US2110397A (en) * 1937-01-29 1938-03-08 Kangas Francis Drill
US2270926A (en) * 1940-06-22 1942-01-27 Theodore W Briegel Fitting
US2567727A (en) * 1949-04-07 1951-09-11 American Phenolic Corp Connector having an automatic locking sleeve
US2886355A (en) * 1955-08-09 1959-05-12 Waldes Kohinoor Inc Coupled assemblies and coupling ring for use therein
US3120966A (en) * 1959-11-16 1964-02-11 Gilbert T Lyon Shielded hose coupling and assembly
US3097871A (en) * 1961-07-05 1963-07-16 Mcnally Bros Machine & Gear Co Coupling device
US3314696A (en) * 1964-02-11 1967-04-18 Perfecting Service Company Quick connect coupling
US3279835A (en) * 1964-02-12 1966-10-18 Anderson Co Adapter
US3298723A (en) * 1964-06-24 1967-01-17 Carl A Damm Mechanical coupling
US3450424A (en) * 1964-12-24 1969-06-17 Wiggins Inc E B Self-locking coupling
US3367692A (en) * 1965-09-20 1968-02-06 Globe Union Inc Shaft construction
US3347293A (en) * 1965-12-23 1967-10-17 Magna Driver Corp Removable bit construction for screwdrivers and the like
GB1071978A (en) * 1966-05-06 1967-06-14 Ford Motor Co Hose-pipe connections
US3552775A (en) * 1968-03-06 1971-01-05 Richard E Warner Trailer hitch coupling
US3574362A (en) * 1969-04-17 1971-04-13 Stewart Warner Corp Vacuum system coupling
US3584902A (en) * 1969-07-09 1971-06-15 Anchor Coupling Co Inc Quick-connect safety coupling
US3625551A (en) * 1970-02-25 1971-12-07 Sta Rite Industries Coupling for tubular members
DE2028712A1 (en) * 1970-06-11 1971-12-16 Kessler & Co Tech Chem Gmbh Detachable pipe or hose coupling
US3881753A (en) * 1973-06-04 1975-05-06 Michael E Bochory Fastener mechanism
US3922011A (en) * 1973-12-11 1975-11-25 Tom Walters Hose coupling
US4126338A (en) * 1974-04-24 1978-11-21 Badger Meter, Inc. Threaded coupling
US3973791A (en) * 1974-10-09 1976-08-10 Hps Company, Inc. Safety coupling device
US4009896A (en) * 1976-05-10 1977-03-01 General Motors Corporation Quick connect coupling
US4063760A (en) * 1976-10-27 1977-12-20 The Weatherhead Company Quick connect coupling
US4059295A (en) * 1976-11-12 1977-11-22 Gordon H. Cork Tube coupling
IT1086546B (en) * 1977-05-23 1985-05-28 Uniflex Spa JOINT FOR FLEXIBLE HOSES WITH QUICK CONNECTION AND RELEASE
US4194765A (en) * 1978-03-13 1980-03-25 Reddy Robert R Telescoping slip-together tubing joint
US4198080A (en) * 1978-05-19 1980-04-15 Baxter Travenol Laboratories, Inc. Telescoping-type connector
US4226445A (en) * 1978-10-20 1980-10-07 Armaturenfabrik Hermann Voss Gmbh & Co. Hose and pipe coupling
US4220361A (en) * 1979-02-01 1980-09-02 The Aro Corporation Connector for plastic tubing
US4541658A (en) * 1982-03-22 1985-09-17 Proprietary Technology, Inc. Swivelable quick connector assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102802A (en) * 1936-01-30 1937-12-21 Electrolux Corp Coupling
US2516907A (en) * 1945-07-09 1950-08-01 H A Douglas Mfg Co Coupling
US2516883A (en) * 1947-09-05 1950-08-01 Douglas Mfg Co Vacuum cleaner coupling
CH403414A (en) * 1962-06-15 1965-11-30 Amf Overseas Corp Pipe coupling
US3245703A (en) * 1963-10-28 1966-04-12 Robert S Manly Quick detachable pipe coupling
DE2132181A1 (en) * 1971-06-29 1973-01-11 Siemens Elektrogeraete Gmbh PIPE CONNECTION, IN PARTICULAR OF VACUUM PIPES
US4266814A (en) * 1979-03-23 1981-05-12 Vfp Corporation Plastic tube adapter

Also Published As

Publication number Publication date
EP0234777B1 (en) 1990-07-18
DE3763690D1 (en) 1990-08-23
EP0234777A3 (en) 1987-12-09
US4697832A (en) 1987-10-06

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